Answer
$-10i$
Work Step by Step
$6i^{3}-4i^{5}=6i^{2}i-4i^{4}i=-6i-4i=-10i$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.11 Complex Numbers - A.11 Assess Your Understanding - Page A94: 39
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